1. When a fault condition occurs the controller will illuminate the red "fault" indication light and display a fault code in the format "F##" on the display module.
2. Note the fault code and refer to Table 8.2 for an explanation of the fault code along with several suggestions for corrective actions.
3. Press the reset key to clear the fault and resume operation. Be sure to observe the operation of the unit to prevent a recurrence of the fault.
8. TROUBLESHOOTING
TROUBLESHOOTING
If overheating occurs or the gas supply fails to shut off, do not turn off electrical power to the circulating pump. This may aggravate the problem and increase the likelihood of boiler damage. Instead, shut off the gas supply to the boiler at the gas service valve.
CAUTION
This appliance has wire function labels on all internal wiring. Observe the position of each wire before removing it. Wiring errors may cause improper and dangerous operation. Verify proper operation after servicing.
CAUTION
DANGER
When servicing or replacing components that are in direct contact with the boiler water, be certain that:
●
● There is no pressure in the boiler. (Pull the release on the relief valve. Do not depend on the pressure gauge reading).
●
● The boiler water is not hot
●
● The electrical power is off
When servicing or replacing any components of this boiler be certain that:
●
● The gas is off. ●
● All electrical power is disconnected
WARNING
Do not use this appliance if any part has been under water. Improper or dangerous operation may result. Contact a qualified service technician immediately to inspect the boiler and to repair or replace any part of the boiler which has been under water.
WARNING
Code Description Duration Corrective Action
E00 High Limit Exceeded 50 Sec.
1. Check circulation pump operation.
2. Assure that there is adequate flow through the boiler by accessing the status menu and assuring that there is less than a 50°F rise from the return thermistor to the supply thermistor.
3. Replace switch if faulty. E13
Combustion Fan Speed Low. The boiler combustion air fan speed less than 70% of expected.
60 Sec.
1. Check the combustion air fan wiring. 2. Replace the combustion air fan. 3. Replace the control board. E14
Combustion Fan Speed High. The boiler combustion air fan speed is more than 130% of expected.
60 Sec.
1. Check the combustion air fan wiring. 2. Replace the combustion air fan. 3. Replace the control board.
1. Assure that the system pressure is above 10 psig.
Fault
Code Description Corrective Action
F00 High Limit Exceeded.
1. Check circulation pump operation.
2. Assure that there is adequate flow through the boiler by accessing the status menu and confirming that there is less than a 50°F rise from the return thermistor to the supply thermistor.
3. If gray thermostat wires are being used, disconnect them and jump them together. If F00 code can be reset check thermostat circuit for short circuit or stray voltage. 4. Check supply temperature reading on LED display. Replace High Limit Switch if
supply temperature is below 210°F.
5. Temporarily jump out Water Pressure Switch. If F00 code can be reset check wiring harness and connections. If wiring harness is okay replace Water Pressure Switch. F01 Vent Temperature Limit Exceeded. 1. Push the red reset button on the switch.2. Check the flue temperature during operation using a combustion analyzer.
3. Replace the switch if faulty.
F02 Interrupted or Shorted Supply (Outlet) Thermistor. 1. Check the electrical connection to the thermistor on the outlet manifold.2. Replace thermistor if necessary. F03 Interrupted or Shorted Return (Inlet) Thermistor. 1. Check the electrical connection to the thermistor on the inlet manifold.2. Replace thermistor if necessary.
F05 Supply (Outlet) Temperature exceeded 230°F.
1. Check circulation pump operation.
2. Assure that there is adequate flow through the boiler by accessing the status menu and confirming that there is less than a 50°F rise from the return thermistor to the supply thermistor.
F06 Return (Inlet) Temperature exceeded 230°F.
1. Check circulation pump operation.
2. Assure that there is adequate flow through the boiler by accessing the status menu and confirming that there is less than a 50°F rise from the return thermistor to the supply thermistor.
F09 No flame detected – The boiler will make threeattempts at ignition before the control goes into this lockout condition.
1. Watch the igniter through the observation window provided. 2. If there is no spark, check the spark electrode for the proper ¼" gap. 3. Remove any corrosion from the spark electrode.
4. If there is a spark but no flame, check the gas supply to the boiler. 5. If there is a flame, check the flame sensor.
F10
Loss of Flame Signal – The boiler will relight 4 times before the control goes into this lockout condition.
1. Check the gas pressure to the gas valve while the unit is in operation. 2. Assure that the flame is stable when lit.
3. Check to see if the green light on the display module is out while the boiler is running.
4. If the green light doesn't come on or goes off during operation check the flame signal on the status menu.
5. If the signal reads less than 1 microampere, clean the flame sensor. 6. If the sensor continues to read low, replace it.
F11
False Flame Signal – The boiler will lock out if it senses a flame signal when there should be none present.
1. Turn the gas off to the unit at the service valve. 2. If the flame signal is still present replace the flame rod.
3. If the flame signal is not present after turning off the gas supply, check the gas valve electrical connection.
4. If there is no power to the gas valve, remove the valve and check for obstruction in the valve seat or replace the gas valve.
5. Turn the gas on at the service valve after corrective action is taken. F13 Combustion Fan Speed Low – The boiler willlock out if it senses that the fan speed is less than
70% of expected for more than 60 seconds.
1. Check the combustion air fan wiring. 2. Replace the combustion air fan. 3. Replace the control board. F14 Combustion Fan Speed High – The boiler willlock out if the fan speed is more than 130% of
expected for more than 60 seconds.
1. Check the combustion air fan wiring. 2. Replace the combustion air fan. 3. Replace the control board. F18 Gas Valve Error
1. Make sure the connector is correctly connected to the gas valve. 2. Check the electrical wiring from the valve to the control board. 3. Replace the gas valve.
4. Replace control board.
F30 Watchdog Call factory for further assistance.
F31 Parameter Memory Call factory for further assistance. F32 Parameter Memory Write Error Call factory for further assistance. F33 Programming Error Call factory for further assistance.
Neutral Fault – Boiler locks out if it senses 1. Check for adequate supply voltage.
A. GENERAL (WITH BOILER IN USE)
General boiler observation can be performed by the owner. If any potential problems are found, a qualified installer or service technician/agency must be notified. 1. Remove any combustible materials, gasoline and
other flammable liquids and substances that generate flammable vapors from the area where the boiler is contained.
2. Observe general boiler conditions (unusual noises, vibrations, etc.)
3. Observe operating temperature and pressure on the combination gauge located in the supply piping on the left side of the boiler. Boiler pressure should never be higher than 5 psi below the rating shown on the safety relief valve (25 psig maximum for a 30 psig rating). Boiler temperature should never be higher than 240° F.
4. Check for water leaks in boiler and system piping. 5. Smell around the appliance area for gas. If you smell
gas, follow the procedure listed in the Lighting Operating Instructions to shut down appliance in Section 7, Start-Up Procedure Part B.